{"id":2700,"date":"2015-11-30T14:36:11","date_gmt":"2015-11-30T14:36:11","guid":{"rendered":"http:\/\/www.webhozz.com\/blog\/?p=2700"},"modified":"2019-06-27T07:46:49","modified_gmt":"2019-06-27T07:46:49","slug":"pengertian-struktur-if-dalam-php","status":"publish","type":"post","link":"https:\/\/www.webhozz.com\/blog\/pengertian-struktur-if-dalam-php\/","title":{"rendered":"Pengertian Struktur IF dalam PHP"},"content":{"rendered":"<p>Pengertian Struktur IF dalam bahasa pemograman adalah sebuah struktur logika untuk membuat percabangan alur program. Secara sederhananya, dengan menggunakan struktur IF kita dapat mengatur apakah sebuah perintah akan dijalankan atau tidak tergantung kepada kondisinya.<\/p>\n<p>Sebagai contoh kita ingin membuat program sederhana, jika nama user adalah \u201cAndi\u201d, maka tampilkan kata \u201cSelamat Datang, Andi\u201d. Berikut adalah penulisannya di dalam PHP:<\/p>\n<pre class=\"brush: php; title: ; notranslate\" title=\"\">\r\n&lt;?php\r\n   $nama=&quot;Andi&quot;;\r\n \r\n   if ($nama==&quot;Andi&quot;)\r\n   echo &quot;Selamat datang Andi, di duniailkom...&quot;;\r\n?&gt;\r\n<\/pre>\n<p>Jika anda jalankan kode program diatas, maka di web browser akan tampil \u201cSelamat datang Andi, di duniailkom&#8230;\u201d, namun apabila anda mengganti kode program diatas menjadi:<\/p>\n<pre class=\"brush: php; title: ; notranslate\" title=\"\">\r\n&lt;?php\r\n   $nama=&quot;Joni&quot;;\r\n \r\n   if ($nama==&quot;Andi&quot;)\r\n   echo &quot;Selamat datang Andi, di duniailkom...&quot;;\r\n?&gt;\r\n<\/pre>\n<p>Maka tidak akan ada tampilan apa-apa di dalam web browser.<\/p>\n<p>Struktur logika IF setidaknya membutuhkan 2 inputan, yaitu ekspresi logika (expression) dimana berisi kondisi yang harus dipenuhi, dan perintah yang akan dijalankan (statement) jika kondisi logika tersebut terpenuhi.<\/p>\n<p>Berikut adalah struktur dasar penulisan alur logika IF dalam PHP:<br \/>\nif (expression)<br \/>\n   statement<\/p>\n<p>Expression dalam hal ini adalah kondisi yang harus dipenuhi agar statement dapat dijalankan. Hasil dari expression harus tipe boolean. Selama hasil expression bernilai TRUE, maka statement akan dijalankan, namun jika nilainya FALSE, maka statement tidak akan dijalankan.<\/p>\n<p>Dalam pembuatan program, biasanya digunakan operasi perbandingan sebagai expression. Pada contoh kita pertama, expression kita adalah $nama==\u201dAndi\u201d, yang bermaksud bahwa jika isi variabel $nama sama dengan \u201cAndi\u201d maka jalankan perintah echo.<\/p>\n<p>Namun expression IF ini tidak harus berupa operasi perbandingan, namun bisa berupa variabel, yang selama hasilnya adalah TRUE, maka statement akan dijalankan. Perhatikan contoh berikut ini:<\/p>\n<pre class=\"brush: php; title: ; notranslate\" title=\"\">\r\n&lt;?php\r\n   if (TRUE)\r\n   echo &quot;Selamat datang Andi, di duniailkom...&quot;;\r\n?&gt;\r\n<\/pre>\n<p>Jika anda menjalankan program tersebut, kalimat \u201cSelamat datang Andi, di duniailkom\u2026\u201d akan selalu tampil di web browser, karena kondisi IF akan selalu terpenuhi.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pengertian Struktur IF dalam bahasa pemograman adalah sebuah struktur logika untuk membuat percabangan alur program. Secara sederhananya, dengan menggunakan struktur IF kita dapat mengatur apakah<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[1010,1000,997,1009],"class_list":["post-2700","post","type-post","status-publish","format-standard","hentry","category-belajar-web-programming","tag-belajar-conditional","tag-contoh-else-if","tag-else-if-php","tag-php-conditional"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pengertian Struktur IF dalam PHP - WebHozz Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.webhozz.com\/blog\/pengertian-struktur-if-dalam-php\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pengertian Struktur IF dalam PHP - WebHozz Blog\" \/>\n<meta property=\"og:description\" content=\"Pengertian Struktur IF dalam bahasa pemograman adalah sebuah struktur logika untuk membuat percabangan alur program. 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